- anglediff (radians1, radians2)
- returns: (angle)
calculates the shortest angledifference between two angles (which is a bit tricky i.e. -Math.PI - Math.PI == 0)
- interpolate (float fraction,float from, float to)
- returns: (float)
returns interpolated value between from and to
- spline (float fraction,float prevfrom, float from, float to, float nextto)
- returns: (float)
returns catmull-rom spline interpolated value between from and to
- v3cross (table a, b)
- returns: (table vector)
returns cross product of 3d vector a and b
- v3dif (table a,b)
- returns: (table difference)
returns difference vector between a and b
- v3dist (table v1,v2)
- returns: (float sqdist)
return distance |(v1-v2)| of vectors
- v3dot (table v1, v2)
- returns: (float dot)
returns dotproduct for 2 3vectors
- v3interpolate (float fraction,table from, table to)
- returns: (table)
returns interpolated vector between from and to
- v3len (table vec)
- returns: (float len)
euklid length of vecotr (a²+b²+c²)^0.5
- v3normalize (table vec)
- returns: (table normalized,float origlength)
returns normalized
vector 3d vector and the original length of the vector
- v3polar (float len,planeangle,heightangle)
- returns: (floar x,y,z)
converts polar coords to regular x,y,z
- v3spline (float fraction, table prevfrom, table from, table to, table nextto)
- returns: (table)
returns catmull-rom spline interpolated vector between from and to
- v3sqdist (table v1,v2)
- returns: (float sqdist)
return square distance |(v1-v2)|² of vectors
- v3sqlen (table vec)
- returns: (float len)
square distance. This function is a little bit
faster than the len function which returns the squareroot of this function.
If you only want to compare distances (i.e. is this point inside my distance),
you can square the distance you would like to compare with. This is worth
the effort since it does not make much difference in code and work.
- v3sum (table a,b)
- returns: (table sum)
returns summed vector between a and b
- v4dif (table a,b)
- returns: (table difference)
returns difference vector between a and b
- v4interpolate (float fraction,table from, table to)
- returns: (table)
returns interpolated vector between from and to
- v4spline (float fraction, table prevfrom, table from, table to, table nextto)
- returns: (table)
returns catmull-rom spline interpolated vector between from and to
- v4sum (table a,b)
- returns: (table sum)
returns summed vector between a and b